Combination-lock-operating key



Dec. 27, 1927. 1,653,992

$. UE'. CZAfiTRC') E IZNAGA v comma-171m: LOCKICJPERATING KEY Original Filed March 5, 1925 ill kill

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Patented Dec. 27, 1927.

SERGIO DE CASTRO El IZNAGA, F HAIBANA, CUBA.

COMBINATION-LO(IX-OPERATING KEY.

original application filed March 5, 1923, Serial January 2, 1924.

lily invention relates to combination key rulapted to ope ate specially a combination lock of the cl'iaracter set forth in my application tor combination lock and key, bcrial liiuniher ($23,074:, series of 1915b, liled on. llil rch :3, 1923. An object of this invention. is to provide a key of this character that may he easily adjusted to coni'orn'i to the adjustment oil the look. A further object of this invention is to provide a suitable key to operate any individual lock oil? this character whenever its combination is known. Still an other ohject of my invention is to provide a combination. lock-o nzrating key and pencillielder in compact form.

The lull objects and advantages of my invcntion will appear in connection with the detailed description thereof and the novel. :tcatnres nnhodied in my inventive ideav will he particularly pointed out in the claim.

In the accon'ipanying drawings, which illustrate the application oat my invention in one :t'orm the several ligures are enlarged views; and Fig. 'l. is a side-view of the entire combination key minus a portion of its casing to show its inner disposition; Fig. 2 is a longitudinal sectional view of the key; Fig.1. 3 is a cross-sectional view of the com hination key on the line 3-3 of Fig. 2; Fig. lis a cross-sectional view oi. the combinatien key on the line l of Fig. 1; and Fig. represents the coinhination key seen from its operating end.

Similar nun'ierals refer to similar parts throughout the several views.

Iliteterring more particularly to the character or reference on the drawings, l-2 is a stick which has a stem 3 provided with a number of rows of, preferably, triangular teeth 25, adapted to reccivethe teeth 01' a numher of slidahle toothed bars 19 26, 21, 22, 23, and 24. The end 4: of the stem 3 is cylindrical and enters into a proper hore made in the center of the socket 5, which terms an entire piece with the tubular casinn, 6.

The toothed bars 19, 20, 21, 22, 23, and 24 are provided with rods 26, 27, 28, 29, 30, and 3]., respectively, passing through suitable drillings made in the socket 5, around the end l of the stem 3.

The tubular casing 6 is provided with longitudinal grooves wherethrough the back of the toothed bars 19, 20, 21, 22, 23, and 24 may slide. (See Fig. 4.)

No. 623,074. Divided and this application filed Serial No. 684,083.

toothed bars 1!), 20, 21, 22, 23, and and thercjl'orc these bars may he slid through their respective groove in the tubular casing 6.

7 is a small screw set in the side oi? the stick l-passing through small slot cut in the tulmlar casing; 6, and is intended to hold the stick 1-2 in the casino; 6, and at the same time to limit to one twelfth oil? a turn, in either direction, the motion of the casing; 6 around the stick 12.

it spring-tastencr i) is lodged in a suitable mortise 3 cut in the side of the stick l--2. The spring; tongue 12 presses against the bottom of the mortise 8 causing the round end 11 of the fastener S.) to appear through a gap 13 cut in the trdmlar casino 6, while its edge enters into a slot l/l (iioinnninicating with the upper border of the gap 13, c::- actly at its middle line. Each oil. the slidahle toothed bars is provided with an appended rod. Thus the bar 19 hears the rod 26, the bar 20 bears the rod 27, the bar 21 hears the rod 28, the bar 22 hears the rod 29, the bar 23 bears the rod 30, and the bar 24; hears the rod 31.

These rods 26, 27, 28, 29, 36, and 31. are the same length and they may be provided with equidistant marks to indicate to what tooth of the stem 3 the inner end of the corresponding toothed bar reaches.

The socket 5 provided, all around, wiih a groove 17 which has about one sixth of its outer rim removed, as shown in 18.

A hook 1516 attached to the tubular casing 6 serves to hold the key on the edge of a pocket, in the manner of a fountain pen. and also as a lever when the device is used as key.

The end 2 of the stick 12 is conical and is provided with a central bore adapted to receive the pencil-holder means.

32 is a tube whose end 33 is externally pro vided with screw threads, so that it may be screwed into the central. bore of the stick 1---2.

34k and 35 are two half-pipes whose upper ends are inwards bent and may enter into the inner end 33 of the tube 32.

36 is a crayon.

The device works as follows:

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of one million combinations.

The toothed bars 19, 20, 21, 22, 23, and 2% may be slid in or out through their, respective groove as much as the distance of ten teeth of the stem 3, so that there are ten different lengths for each of the rods 2G, 27, 28, 29, 30, 31, Which can be easily remembered by calling those lengths 1, 2, 3, 1, 5, 6, 7, 8,9 and 0, (naught, being the shorter length of the rod corresponding to the inner position of the toothed bar).

Now, as there are six of said toothed bars, it will be possible to adjust this key to any Thus: starting at the rod 26'the one in line with the hook l5l6 the combimltions from 000000 to 999999 may be represented, a

When the toothed bars 19, 20, 21, 22, 23,

and 2- are in their innermost position touehing the body of the stick 1, only a small portion of the rods 26, 27, 28, 29, 30, and 31 emerge from the socket 5 and the key has the combination 000000.v \Vhen the toothed bars19, 20, 21, 22, 23, and are touching the socket 5, the rods 26, 27, 28, 2t), 30, 31 emerge the most from the socket 5 and the key has the combination 999999.

This key is intended to operate a lock with a number of wards provided with appended rods which must be pushed in more or less, according to a prearranged adjustment, in

order to bring the tlfOlGlltllllCtl wards to certain level or unlocking position before turning the bolt controlling member, what is done by the key itself. The keyhole of said lock being provided with as many holes as there are rods, (26, 27, 28, 29, 30, and 31), in the key. In these holes are lodged the rods of the wards of the lock.

The entrance of the key-hole oi the lock is also provided with a small button which passing through the open portion 18 enters into the groove 17 of the socket 5 and when one twelfth of a turn is given to the key, to either side, prevents its falling out from the key-hole.

Having thus described my invention, what I do claim as new, useful, and desire to secure by Letters Patent is:

An adjustable bitted key embodying a number of slidable bars with appended rods, a casing provided with inner longitinlinal grooves wherethrough the backs of said slidable bars slide, a socket united to the casing and provided with proper apertures wherethrough extend the rods or adjustable bits,

and an outer groove on said casing adapted to receive a button attached to the entrance of the key-hole of a lock to prevent the falling out of the key from said keyhole.

SERGIO 15E oas'rno iaiznaoa. 

